Abstract
Background:
The Janus kinase (JAK) is a crucial intracellular signaling hub for numerous cytokines, which is extensively involved in the activation of inflammatory cascade and the induction of inflammatory injury. JAK inhibition provides protective effects in several inflammation-based disorders, but the potential effects of JAK inhibitor in inflammation-based acute hepatitis remain to be investigated.
Methods and results:
Acute hepatitis is induced by Lipopolysaccharide/D-galactosamine (LPS/D-Gal) in mice with or without the JAK inhibitor Tofacitinib administration. The degree of liver injury, the production of pro-inflammatory cytokines and induction of hepatocytes apoptosis were determined. The results indicated that treatment with Tofacitinib decreased the levels of aminotransferases, attenuated the histological abnormalities in liver and decreased the plasma levels of TNF-α and IL-6 in LPS/D-Gal-insulted mice. In addition, Tofacitinib suppressed the activation of the caspase cascade, decreased the level of cleaved caspase-3, and reduced the count of TUNEL-positive cells.
Conclusion:
Treatment with Tofacitinib alleviated LPS/D-Gal-induced acute hepatitis. JAK maybe become a promising target for the control of inflammation-based liver disorders.
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Acknowledgements
This work was supported by grants from the National Natural Science Foundation of China (No.81871606) and the Science and Technology Research Program of Chongqing Municipal Education Commission (No. KJQN201900435).
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Xinyue Zhang, Li Zhang, and Yongqiang Yang conceived and designed the project. Ling Lin, Longjiang Li and Kai Hu acquired the data. Li Tang, Ruyue Shao and Min Zhu analyzed and interpreted the data. Yuhua Ma, Xinyue Zhang and Yongqiang Yang wrote the paper.
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All animal experiments in this study were approved by the Ethics Committee of Chongqing Medical University.
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The data supporting this study’s findings are available from the corresponding author (fyyyq1984@cqmu.edu.cn) upon reasonable request.
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Zhang, X., Lin, L., Li, L. et al. Janus kinase inhibitor Tofacitinib alleviated acute hepatitis induced by lipopolysaccharide/D-galactosamine in mice. Mol Biol Rep 50, 1477–1485 (2023). https://doi.org/10.1007/s11033-022-08086-6
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DOI: https://doi.org/10.1007/s11033-022-08086-6